The Fortress Mailbox

12″ x 12″ x 23″ at 98 LBS. (Mailbox Only)

The Fortress is ready for battle! Made with a 1/4″ thick steel shell, 3/16″ thick reinforced steel and weighing just under 100 lbs., this mailbox is ready for anything. With the same mail storage as the Large Standard (average of 2 weeks), the Fortress is set up for outgoing mail. Behind the upper 3/16″ thick steel door is an incoming mail slot and 3″ x 5″ x 11 1/2″ outgoing mail compartment. It has two high security tubular keys for the 7 pin tubular lock; all have hardware including a satin chrome handle. It also has a powder coated 1/4″ steel flag.

Matching In-Ground post for this mailbox is: LG 5″ x 5″ x 57″.
Need a Surface Mount (Break-Away) Post for a sidewalk or cement slab installation? We have both styles available, and you can add either post below.

* = Color must be selected in order to add to cart.

USPS Post Master General Approved!



Lock Options

Add a Rear Door

Add a Steel Post

Optional Accessories

Add Free Address Numbers

Add More Address Numbers

Enter Address Decals Below

Special Features for the Fortress Mailbox:

  • 2″ continuous welded steel hinge
  • All hand-welded design (no spot welds or rivets)
  • 1 3/4″ x 11 1/2″ Incoming mail slot
    • 8″ depth of recessed slot design to:
      • Accept small packages
      • Keep hands out!
  • 7 Pin Tubular lock (upgradable)
  • Brushed satin nickel pull
  • 2 heavy-duty magnets
  • Free 1 3/4″ vinyl adhesive address numbers for the front door
    • Request specific numbers at time of order
    • Larger side numbers, reflective numbers and street name available
  • High-performance powder coating inside and out
    • Standard Colors (Slate Gray or Glossy Black)
    • Special colors available for an additional cost
  • Can be custom adjusted and upgraded:
    • Any custom solid powder coating color available (+$125 per order)
  • Add a steel post (5″ x 5″ x 57″)
    • Surface mount post available
      • Curb Mounted (for installing on an existing sidewalk)
      • Ground Level (for installing at ground level)
  • *Rear Door access available for an additional cost (3 options, same price)
    • Front and rear door keyed alike
      • If you purchase an upgraded lock, a quantity of 2 is required
    • Front fake door and fake lock. Door is welded shut on the inside.
    • No front door. It is replaced with a steel plate completely welded.
  • Optional Upgradable Lock Options:
    • Slam-Lock (for locked up packages)
    • High-Security Medeco and Abloy
    • The Vault Lock
    • The Vault Lock EXTREME!
    • Setup for the “Arrow Lock” (post office approval needed)


Weight 98 lbs
Dimensions 12 × 12 × 23 in

Glossy Black, Slate Gray, Custom Color + $150 (contact us for desired color)

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